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  1. By: Clench, William James, - Johnson, Charles Willison, - Harvard University. Dept. of Mollusks. - Harvard University. Museum of Comparative Zoology. Department of Mollusks.
    Publication info: Cambridge, Mass, Dept. of Mollusks, Museum of Comparative Zoölogy, Harvard University, 1941-
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  2. By: Harvard University. Museum of Comparative Zoology. Department of Mollusks. - Harvard University. Museum of Comparative Zoology. Department of Mollusks.
    Publication info: Cambridge, Mass, Dept. of Mollusks,
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library